Vector sensor unit for underwater monitoring network

A vector sensor, vector hydrophone technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of limited information, few measurement points, short working time, etc., to achieve high detection accuracy and enhance the effect of detection effect.

Inactive Publication Date: 2017-09-26
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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Problems solved by technology

At present, submarine seismometers (US13109794, ZL201110278604.9) are usually used in fixed-type geoacoustic detection on the seabed. Although this sensor can obtain three-dimensional vibration information of the seabed and sound pressure information of the water body, this method has short working time and few measurement points , so the amount of information obtained is relatively limited

Method used

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  • Vector sensor unit for underwater monitoring network
  • Vector sensor unit for underwater monitoring network
  • Vector sensor unit for underwater monitoring network

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Experimental program
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Embodiment Construction

[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the vector sensor unit includes a vector hydrophone 1, a vector detector 2, and a signal processing module 3, such as figure 1 shown. The vector hydrophone 1 is mechanically and electrically connected to the signal processing module 3 through the watertight connector 17 at the other end of the flexible composite cable 16 , and the signal processing module 3 is a part of the vector detector 2 . A plurality of vector sensor units form a link network through the main cable 4. When working, the vector sensor units transmit the real-time processed signals to the junction box 5 through the main cable 4, and then the junction box 5 transmits the data to the upper A layer of network. The junction box 5 is used as the power supply and information transfer equipment of the vector sensor unit.

[0023] The structur...

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Abstract

The invention relates to a vector sensor unit for an underwater monitoring network. The vector sensor unit comprises a vector hydrophone, a vector detector and a corresponding signal processing module. The vector hydrophone comprises a sound pressure hydrophone and an accelerometer and is used for receiving underwater acoustic signals in the sea; the vector detector comprises a pressure detector and an acceleration detector and is used for acquiring seabed earth sound signals; the signal processing module has the functions of signal amplification, smoothing, sampling and communication and is used for completing signal processing and transmission. The vector sensor unit can be used for measuring underwater acoustic signals and earth sound signals in the sea simultaneously, measurement information is richer, measurement results are more reliable, and the vector sensor unit can be used for underwater guarding of ports, navigation channels and coasts, earthquake and tsunami warning, seabed oil and gas resource exploration, marine biological resource survey and other aspects.

Description

technical field [0001] The invention relates to a vector sensor unit, in particular to a vector sensor unit which can be used in an underwater monitoring network and can simultaneously acquire underwater acoustic signals and seabed vibration signals. Background technique [0002] The underwater listening network is a sensor network composed of a series of underwater detection nodes, which are generally divided into fixed and mobile. It is mainly used for military investigation, port channel warning, ocean observation, etc., and has very important strategic value. In recent years, although my country is vigorously promoting the construction of a networked underwater warning system and ocean observation network, compared with foreign countries, there is still a certain gap between my country's underwater networked countermeasure system and its operation. They are mainly located in my country's near-shore or near-sea areas, lack deep-sea countermeasure capabilities, and the unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01V1/00
CPCG01H17/00G01V1/001
Inventor 周宏坤葛锡云冯雪磊赵俊波
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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